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Finding the Fourth Proportional to 560,479.54, 773,455.32 and 305,834.98

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Solution

The fourth proportional to 560,479.54, 773,455.32 and 305,834.98 is: 422,048.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,479.54 : 773,455.32 = 305,834.98 : x
  2. Step 2: Convert to fraction form
    560,479.54/773,455.32 = 305,834.98/x
  3. Step 3: Cross multiply
    560,479.54x = 773,455.32 × 305,834.98
  4. Step 4: Simplify right side
    560,479.54x = 236,549,692,323.09
  5. Step 5: Solve for x
    x = 236,549,692,323.09/560,479.54
  6. Step 6: Final answer
    x = 422,048.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.